I've used Bitbucket for years and I've never seen "multiple assignees for an issue" as something which is available. I've just looked at a couple of our (privat

I've used Bitbucket for years and I've never seen "multiple assignees for an issue" as something which is available. I've just looked at a couple of our (private) repositories and I still can't see how you would do it. Either that feature doesn't exist or it's used in an extremely obscure manner.